Calibration
WIKA data sheet CT 31.06
Page 1 of 16 WIKA data sheet CT 31.06∙08/2020
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Dead-weight tester in compact design Model CPB3800
Dead-weight tester in compact design, model CPB3800
Description
Proven primary standard
Pressure balances (dead-weight testers) are the most accurate instruments available on the market for the calibration of electronic or mechanical pressure measuring instruments. The direct measurement of the pressure (p = F/A), as well as the use of high-quality materials enable a very small measurement uncertainty, in conjunction with an excellent long-term stability.
The pressure balance (dead-weight tester) has therefore been used for years in factory and calibration laboratories in industry, national institutes and research laboratories.
Stand-alone operation
Due to its integrated pressure generation and the purely mechanical measuring principle, the model CPB3800 is ideal for on-site use for maintenance and service.
Basic principle
Pressure is defined as the quotient of force and area. The core component of the CPB3800 is therefore a very precisely manufactured piston-cylinder system, onto which a mass load is applied in order to generate the individual test points.
The mass load is proportional to the target pressure and this is achieved through optimally graduated masses. As standard, these masses are manufactured to the standard gravity (9.80665 m/s²), though they can be adjusted to a specific location and calibrated according to UKAS accreditation.
for further approvals see page 9
Applications
■ Primary standard for calibrating the pressure scale in a hydraulic range up to 1,200 bar [16,000 lb/in²]
■ Reference instrument for factory and calibration
laboratories for the testing, adjustment and calibration of pressure measuring instruments
■ Complete, stand-alone system, also suitable for on-site use
Special features
■ Total measurement uncertainty up to 0.025 % of reading
■ Upgradeable using CPS5800/CPM5800 to provide increased accuracy to 0.006 %
■ Direct replacement of original DH-Budenberg 580 series
■ Factory calibration included as standard, traceable to national standards, with UKAS calibration possible as an option
■ Masses manufactured from stainless steel, can be adjusted to local gravity
Easy operation
The integrated dual-area spindle pump enables rapid filling of the test system and smooth pressure generation up to 1,200 bar [16,000 lb/in²]. At the same time, the precisely adjustable spindle pump also enables fine pressure adjustment. A control schematic for pressure generation on the instrument base facilitates quick and easy operation.
As soon as the measuring system reaches equilibrium, there is a balance of forces between the pressure and the masses.
The excellent quality of the system ensures that this pressure remains stable over several minutes, so that the pressure value for comparative measurements can be read without any problems, or also so that more complex adjustments can be carried out on the test item.
Compact instrument version
The CPB3800 is also particularly notable for its compact dimensions, which are not altered during operation, since the spindle runs within the pump body.
With its compact dimensions, the exceptionally robust ABS plastic case and the low weight associated with these, the CPB3800 is also particularly suited to on-site applications.
CPB3800 with dual-range piston-cylinder systems
Next to the standard piston-cylinder systems the CPB3800 instrument base can also be combined with the CPS5800 single- or dual-range piston-cylinder systems.
With this combination the former 580 series dead-weight tester from DH-Budenberg is still available. This includes all 580L/580M/580DX and 580HX instruments and are identical in form, fit, function, specification and quality.
The table below shows WIKA's model code combinations to the corresponding 580 series models.
Replacement instruments for DH-Budenberg 580 series
Former model
designations Replacement model code combinations Instrument
base Piston-cylinder
system / mass set Range 1) Accuracy
Standard Premium
580L CPB3800 CPS5800 / CPM5800 1 ... 120 bar [10 ... 1,600 lb/in²] 0.015 % 0.007 %
580M CPB3800 CPS5800 / CPM5800 2 ... 300 bar [30 ... 4,000 lb/in²] 0.015 % 0.006 %
580DX CPB3800 CPS5800 / CPM5800 1 ... 60 bar / 10 ... 700 bar
[10 ... 800 / 100 ... 10,000 lb/in²] 0.015 % 0.006 % 580HX CPB3800 CPS5800 / CPM5800 1 ... 60 bar / 20 ... 1,200 bar
[10 ... 800 / 200 ... 16,000 lb/in²] 0.015 % 0.007 %
1) Standard weights are dual marked in pressure units bar and kPa. Also available for kg/cm² and lb/in².
For detailed specifications see page 6, 8 and 9.
Control schematic on the CPB3800 instrument base
Dead-weight tester CPB3800 with piston unit CPS5800
Both the piston and cylinder are manufactured from tungsten carbide. This pairing of materials, in comparison to other materials, has very low pressure and temperature coefficients of expansion, which results in a very good linearity for the effective area of the piston and a very high accuracy.
Piston and cylinder are very well protected against contact, impacts or contamination from outside in a solid stainless- steel case. At the same time, overpressure protection is integrated, which prevents the piston from being forced out vertically and avoids damage to the piston-cylinder system in the event of masses removal under pressure.
The masses are stacked on mass carrier, which sits on the piston shaft. The construction of the mass carrier provides a very low centre of gravity for the stacked masses, which minimises both the side thrust on the piston-cylinder system and the friction. For smaller starting pressures, the masses can also be stacked directly onto the piston shaft, without using the mass carrier.
The overall design of the piston-cylinder system and the very precise manufacturing of both the piston and the cylinder, ensures excellent operating characteristics with long free-rotation time and low sink rates. Thus a high long-term stability is ensured. Therefore, the recommended recalibration interval is two to five years dependent on the conditions of use.
1 Effective area A
Pressure p Force F
1
Piston-cylinder system with masses, without mass carrier
Force F
Pressure p
1
Piston-cylinder system with masses and mass carrier
The standard piston-cylinder system
The CPS5800 piston-cylinder systems are available in two fundamentally different designs, depending on the measuring range:
■ Single-range piston-cylinder system for measuring ranges 120 bar and 300 bar [1,600 and 4,000 lb/in²]
■ Dual-range piston-cylinder system for measuring ranges 700 bar and 1,200 bar [10,000 and 16,000 lb/in²]
High accuracy over a wide measuring range
The dual-range piston-cylinder system offers two measuring ranges in one case with automatic measuring range switching from low-pressure to high-pressure piston. This provides the user with an extremely flexible measuring instrument that can cover a wide measuring range with high accuracy, with only one piston-cylinder system and one mass set. Additionally two test points can automatically be achieved by loading just the one mass.
Both the piston and cylinder are manufactured from hardened steel or tungsten carbide, respectively. This pairing of materials has very low pressure and temperature coefficients of expansion, which results in a very good linearity for the effective area of the piston and a very high accuracy.
Piston and cylinder are very well protected, against contact, impacts or contamination from outside, in a solid stainless-steel/hardened tool steel case. At the same time, overpressure protection is integrated, which prevents the piston from being forced out vertically and avoids damage to the piston-cylinder system in the event of masses removal under pressure.
The masses are stacked directly onto the piston shaft. This makes it easier to place the masses on and thus enables a lower start value.
The overall design of the piston-cylinder system and the very precise manufacturing of both the piston and the cylinder, ensure exceptionally low friction force, which results in excellent operating characteristics with long free-rotation time and low sink rates. Thus a high long-term stability is ensured.
Therefore, the recommended recalibration interval is two to five years dependent on the conditions of use.
1 Effective area A
2 High-pressure piston
3 Low-pressure piston = High-pressure cylinder
The optional piston-cylinder system model CPS5800
Pressure p Force F
1
Single-range piston-cylinder system, model CPS5800
Force F
Pressure p 2 3
Dual-range piston-cylinder system, model CPS5800
Standard mass sets Measuring range
[bar/kPa] 1 ... 120 2.5 ... 300 5 ... 700 10 ... 1,200
Quantity Nominal pressure per piece Quantity Nominal pressure per piece Quantity Nominal pressure per piece Quantity Nominal pressure per piece
[bar] [bar] [bar] [bar]
Piston and make-up weight 1 1 1 2.5 1 5 1 10
Piston, mass carrier and make-up weight for mass carrier
1 20 1 50 1 100 1 200
Masses (stackable on mass
carrier) 3 20 3 50 4 100 3 200
Masses (stackable on piston) 1 20 1 50 1 100 1 200
1 10 1 25 1 50 1 100
2 4 2 10 2 20 2 40
1 2 1 5 1 10 1 20
1 1 1 2.5 1 5 1 10
Measuring range
[lb/in²] 10 ... 1,600 25 ... 4,000 50 ... 10,000 100 ... 16,000
Quantity Nominal pressure per piece Quantity Nominal pressure per piece Quantity Nominal pressure per piece Quantity Nominal pressure per piece
[lb/in²] [lb/in²] [lb/in²] [lb/in²]
Piston 1 10 1 25 1 50 1 100
Piston, mass carrier and make-up weight for mass carrier
1 190 1 475 1 950 1 1,900
Masses (stackable on mass
carrier) 5 200 5 500 7 1,000 5 2,000
Masses (stackable on piston) 1 200 1 500 1 1,000 1 2,000
1 100 1 250 1 500 1 1,000
2 40 2 100 2 200 2 400
1 20 1 50 1 100 1 200
1 10 1 25 1 50 1 100
The following tables show the number of masses within a mass set with their nominal mass values and the resulting nominal pressures for the respective measuring ranges.
Should the instrument not be operated under reference conditions (ambient temperature 20 °C [68 °F], atmospheric pressure 1,013 mbar [14.69 lb/in²], relative humidity 40 %), the measured values must be corrected arithmetically.
For the measurement of the ambient conditions, the CPU6000 CalibratorUnit can be used, see page 12.
The masses are manufactured, as standard, to the standard gravity (9.80665 m/s²) although they can be adjusted for any local gravity.
Tables of masses
The mass sets model CPM5800 (option)
These mass sets are supplied in a flight cases with foam inserts. This includes the masses listed in the table of masses below, made from non-magnetic stainless steel, and optimised for everyday use.
For finer increments and for a higher resolution, as an option, the standard mass sets can be extended by a set of fine increment masses.
If even smaller intermediate values need to be generated, using one of the class M1 or F1 set of fine increment masses from the accessories is recommended.
Measuring range
[bar] or [kg/cm²] Single-piston measuring ranges Dual-piston measuring ranges
1 … 120 2 … 300 1 … 700 1 … 1,200
1 … 60 10 … 700 1 … 60 20 ... 1,200
Quantity Nominal pressure per piece Quantity Nominal pressure per piece Quantity Nominal pressure per piece Nominal pressure per piece Quantity Nominal pressure per piece Nominal pressure per piece
[bar] or
[kg/cm²] [bar] or
[kg/cm²] [bar] or
[kg/cm²] [bar] or
[kg/cm²] [bar] or
[kg/cm²] [bar] or [kg/cm²]
Piston and make-up
weight 1 1 1 2 1 1 10 1 1 20
Standard mass set 4 20 4 50 5 10 100 4 10 200
1 18 1 45 1 9 90 1 9 180
1 10 1 25 1 5 50 1 5 100
2 4 2 10 2 2 20 2 2 40
1 2 1 5 1 1 10 1 1 20
2 1 1 3 1 0.5 5 1 0.5 10
1 0.5 1 2.5 -- -- -- -- -- --
Set of fine increment masses
(optional)
1 0.4 2 1 2 0.2 2 2 0.2 4
1 0.2 1 0.5 1 0.1 1 1 0.1 2
1 0.1 1 0.25 1 0.05 0.5 1 0.05 1
2 0.04 2 0.1 2 0.02 0.2 2 0.02 0.4
1 0.02 1 0.05 1 0.01 0.1 1 0.01 0.2
Mass set model CPM5800 (Sample picture)
Specifications Model CPB3800
Piston-cylinder systems (standard)
Measuring range 1) 1 … 120 bar 2.5 ... 300 bar 5 ... 700 bar 10 ... 1,200 bar
Required masses 41 kg 50 kg 58 kg 50 kg
Smallest step 2)
(Standard mass set) 1 bar 2.5 bar 5 bar 10 bar
Nominal effective area of the piston 1/16 in² 1/40 in² 1/80 in² 1/160 in²
Measuring range 1) 10 … 1,600 lb/in² 25 ... 4,000 lb/in² 50 ... 10,000 lb/in² 100 ... 16,000 lb/in²
Required masses 37 kg 46 kg 58 kg 46 kg
Smallest step 2)
(Standard mass set) 10 lb/in² 25 lb/in² 50 lb/in² 100 lb/in²
Nominal effective area of the piston 1/16 in² 1/40 in² 1/80 in² 1/160 in²
Accuracies
Standard 3)4) 0.05 % of reading
Option 3)4) 0.025 % of reading
Pressure transmission medium Hydraulic fluid based on VG22 mineral oil (0.5 l included in scope of delivery) Material
Piston Tungsten carbide
Cylinder Tungsten carbide
Mass set Stainless steel, non-magnetic
Weight
Piston-cylinder system 2.4 kg [5.3 lbs]
bar mass set incl. mass carrier 41.5 kg [91.5 lbs] 50.5 kg [111.4 lbs] 58.5 kg [129.0 lbs] 50.5 kg [111.4 lbs]
lb/in² mass set incl. mass carrier 37 kg [81.4 lbs] 45.6 kg [100.5 lbs] 57 kg [125.5 lbs] 45.5 kg [100.5 lbs]
Storage case for mass set
(optional, 2 pieces required) 11 kg [24.2 lbs]
Dimensions (W x D x H)
Storage case for mass set (optional) 400 x 320 x 320 mm and 320 x 220 x 320 mm [15.7 x 12.6 x 12.6 in] and [12.6 x 8.7 x 12.5 in]
1) Theoretical starting value; corresponds to the pressure value generated by the piston or the piston and its make-up weight (by their own weight). To optimise the operating characteristics more masses should be loaded.
2) The smallest pressure change value that can be achieved based on the standard mass set. To reduce this, a set of fine increment masses is also available.
3) The accuracy from 10 % of the measuring range is based on the measured value. In the lower range, a fixed error based on 10 % of the range applies.
4) Measurement uncertainty assuming reference conditions (ambient temperature 20 °C [68 °F], atmospheric pressure 1,013 mbar [14.69 lb/in²], relative humidity 40 %). For operation without a CalibratorUnit, corrections must be made if required.
Piston-cylinder systems model CPS5800 (option)
Version Single-piston measuring ranges Dual-piston measuring ranges
Measuring range 1) 1 … 120 bar 2 … 300 bar 1 … 60 bar /
10 ... 700 bar 1 … 60 bar / 20 … 1,200 bar
Required masses 49.7 kg 49.6 kg 57.4 kg 49.2 kg
Smallest step 2)
(Standard mass set) 0.5 bar 2.5 bar 0.5 bar / 5.0 bar 0.5 bar / 10 bar
Smallest step 3)
(Set of fine increment masses) 0.02 bar 0.05 bar 0.01 bar / 0.1 bar 0.01 bar / 0.2 bar Nominal effective area of the piston 0.4032 cm² 0.1613 cm² 0.8065 cm² / 0.0807 cm² 0.8065 cm² / 0.0403 cm² Measuring range 1) 10 … 1,600 lb/in² 30 … 4,000 lb/in² 10 … 800 /
100 … 10,000 lb/in² 10 … 800 / 200 … 16,000 lb/in²
Required masses 45.5 kg 45.3 kg 56.4 kg 45 kg
Smallest step 2)
(Standard mass set) 5 lb/in² 20 lb/in² 5 lb/in² / 50 lb/in² 5 lb/in² / 100 lb/in²
Smallest step 3)
(Set of fine increment masses) 0.2 lb/in² 0.5 lb/in² 0.1 lb/in² / 1 lb/in² 0.1 lb/in² / 2 lb/in² Nominal effective area of the piston 0.4032 cm² 0.1613 cm² 0.8065 cm² / 0.0807 cm² 0.8065 cm² / 0.0403 cm² Measuring range 1) 100 … 12,000 kPa 200 … 30,000 kPa 100 … 6,000 kPa /
1,000 … 70,000 kPa 100 … 6,000 kPa / 2,000 … 120,000 kPa
Required masses 49.7 kg 49.6 kg 57.4 kg 49.2 kg
Smallest step 2)
(Standard mass set) 50 kPa 250 kPa 50 kPa / 500 kPa 50 kPa / 1,000 kPa
Smallest step 3)
(Set of fine increment masses) 2 kPa 5 kPa 1 kPa / 10 kPa 1 kPa / 20 kPa
Nominal effective area of the piston 0.4032 cm² 0.1613 cm² 0.8065 cm² / 0.0807 cm² 0.8065 cm² / 0.0403 cm² Accuracies
Standard 4) 5) 0.015 % of reading
Premium 4) 5) 0.007 % of reading 0.006 % of reading 0.007 % of reading
Pressure transmission medium
Standard Hydraulic fluid based on VG22 mineral oil 6) Material
Piston Steel Steel Steel / tungsten carbide Steel / tungsten carbide
Cylinder Bronze Steel Steel / tungsten carbide Steel / tungsten carbide
Mass set Stainless steel, non-magnetic
Weight
Piston-cylinder system 1 kg [2.2 lbs] 0.8 kg [1.8 lbs] 2 kg [4.4 lbs] 2 kg [4.4 lbs]
Storage case for the piston-cylinder
system 3.1 kg [6.8 lbs]
bar standard mass sets
(in 2 flight cases) 66.5 kg [146.3 lbs] 66.4 kg [146.1 lbs] 74.2 kg [163.2 lbs] 66 kg [145.2 lbs]
lb/in² standard mass sets
(in 2 flight cases) 62.3 kg [137.1 lbs] 62.1 kg [136.6 lbs] 73.2 kg [161 lbs] 61.8 kg [136 lbs]
bar set of fine increment masses 0.33 kg [0.73 lbs] 0.5 kg [1.1 lbs] 0.5 kg [1.1 lbs] 0.5 kg [1.1 lbs]
lb/in² set of fine increment masses 0.23 kg [0.5 lbs] 0.34 kg [0.75 lbs] 0.34 kg [0.75 lbs] 0.34 kg [0.75 lbs]
1) Theoretical starting value; corresponds to the pressure value generated by the piston or the piston and its make-up weight (by their own weight). To optimise the operating characteristics more masses should be loaded.
2) The smallest pressure change value that can be achieved based on the standard mass set. To reduce this, a set of fine increment masses is also available.
3) The smallest pressure change value that can be achieved based on the optional set of fine increment masses. For further reductions, an accessory of class M1 or F1 set of fine increment masses is available to compensate for actual area of piston unit.
4) The accuracy from 10 % of the measuring range is based on the measured value. The standard accuracy of 0.02 % of reading or 10 % of measuring range is maintained without any correction of actual area of the piston unit. In the lower range, the accuracy is 0.03 % of reading for the single-range piston-cylinder systems and 0.025 % of reading for dual-range piston-cylinder systems.
5) Measurement uncertainty assuming reference conditions (ambient temperature 20 °C [68 °F], atmospheric pressure 1,013 mbar [14.69 lb/in²], relative humidity 40 %). For operation without a CalibratorUnit, corrections must be made if required.
6) Other pressure transmission media on request.
Piston-cylinder systems model CPS5800 (option) Dimensions (W x D x H)
Carrying case for standard mass
sets 400 x 320 x 320 mm and 320 x 220 x 320 mm
[15.7 x 12.6 x 12.6 in] and [12.6 x 8.7 x 12.5 in]
Storage case for the piston-cylinder
system (optional) 380 x 160 x 170 mm [15 x 6.3 x 6.7 in]
Base Connections
Connection for piston-cylinder system G ¾ B (male)
Test item connection G ½ female thread, loose union connection Material
Wetted parts Austenitic stainless steel, high-tensile brass, nitrile rubber
Pressure transmission medium Hydraulic fluid based on VG22 mineral oil (0.5 l included in scope of delivery) 6)
Reservoir 170 cm³
Weight
Base 13.5 kg [29.8 lbs]
Storage case for the base (optional) 9 kg [19.8 lbs]
Permissible ambient conditions
Operating temperature 18 ... 28 °C [64 ... 82 °F]
Dimensions (W x D x H)
Base 401 x 397 x 155 mm [15.8 x 15.7 x 6.1 in], for details, see technical drawings
6) Other pressure transmission media on request.
Approvals
Logo Description Country
EU declaration of conformity
Pressure equipment directive; PS > 1,000 bar, module A, pressure accessories European Union EAC (option)
■ EMC directive
■ Pressure equipment directive
■ Low voltage directive
■ Machinery directive
Eurasian Economic Community
GOST (option)
Metrology, measurement technology Russia
UkrSEPRO (option)
Metrology, measurement technology Ukraine
- MTSCHS (option)
Permission for commissioning Kazakhstan
Transport dimensions for complete instrument
The complete instrument, in its standard version and standard scope of delivery, consists of three packages on a single pallet.
The dimensions are 960 x 770 x 550 mm [37.8 x 27.6 x 21.6 in].
The overall weight is dependent on the measuring range.
Standard units CPB3800
Version Weight Version Weight
net gross net gross
1 … 120 bar 74 kg [163.2 lbs] 83 kg [183 lbs] 10 ... 1,600 lb/in² 70 kg [154.4 lbs] 79 kg [174.2 lbs]
2.5 … 300 bar 82 kg [180.8 lbs] 91 kg [201 lbs] 25 ... 4,000 lb/in² 79 kg [174.2 lbs] 88 kg [194 lbs]
5 … 700 bar 90 kg [198.5 lbs] 99 kg [218.3 lbs] 50 ... 10,000 lb/in² 90 kg [198.5 lbs] 99 kg [218.3 lbs]
10 … 1,200 bar 82 kg [180.8 lbs] 91 kg [201 lbs] 100 ... 16,000 lb/in² 79 kg [174.2 lbs] 88 kg [194 lbs]
Optional CPS/CPM5800 units with CPB3800 base
Version Weight Version Weight
net gross net gross
Single-piston measuring ranges Single-piston measuring ranges
1 … 120 bar 81.5 kg [179.7 lbs] 90.5 kg [199.6 lbs] 10 … 1,600 lb/in² 77 kg [169.8 lbs] 86 kg [189.6 lbs]
2 … 300 bar 77 kg [169.8 lbs] 99.5 kg [219.4 lbs] 30 … 4,000 lb/in² 77 kg [169.8 lbs] 86 kg [189.6 lbs]
Dual-piston measuring ranges Dual-piston measuring ranges
1 … 60 bar /
10 … 700 bar 90.5 kg [199.6 lbs] 99.5 kg [219.4 lbs] 10 … 800 lb/in² /
100 … 10,000 lb/in² 89.5 kg [197.3 lbs] 98.5 kg [217.2 lbs]
1 … 60 bar /
20 … 1,200 bar 82.5 kg [181.9 lbs] 91.5 kg [201.8 lbs] 10 … 800 lb/in² /
200 … 16,000 lb/in² 82.5 kg [181.9 lbs] 87 kg [191.3 lbs]
Certificates
Certificate Calibration
CPB3800 Standard: Calibration certificate
Option: UKAS calibration certificate (pressure calibration with a mass set)
CPS5800 Standard: Calibration certificate
Option 1: UKAS calibration certificate (pressure calibration with a mass set) Option 2: UKAS calibration certificate (area calibration)
CPM5800 Standard: without
Option 1: Calibration certificate
Option 2: UKAS calibration certificate (mass calibration)
Option 3: UKAS calibration certificate (pressure calibration with a piston-cylinder system) Recommended recalibration interval 2 to 5 years (dependent on conditions of use)
Approvals and certificates, see website
83 [3,27] 397 [15,63]
93 [3,66]133 [5,24]
143 [5,63]
145 [5,71]
108 [4,25]
401 [15,79]
156 [6,14]
Ø 358 [14,09]
259 [10,2]22 [0,87]
1
2
3 4
5 6 7 8
9 10
9
11
12
Dimensions in mm [in]
(without masses)
1 Test connection 2 Rotatable feet
3 Dual-area spindle pump with star handle 4 Piston-cylinder system
5 High-pressure shut-off valve 6 Reservoir with plug screw 7 Low-pressure shut-off valve
8 Pressure generation control schematic 9 Oil collecting tray
10 O-ring 8.9 x 1.8
11 Adapter, see scope of delivery 12 Sealing ring USIT 10.7 x 18 x 1.5
Standard connection piston-cylinder system Test connection
The models of the CPU6000 series are compact tools for use with a pressure balance (dead-weight tester). In particular when highly accurate measuring values, with measurement uncertainties of less than 0.025 %, are required, complicated mathematical calculations and corrections are necessary.
With the CPU6000 in combination with the WIKA-Cal (PC software) all critical ambient parameters can be registered and automatically corrected.
The CPU6000 series is made up of three instruments
Weather station, model CPU6000-W
The CPU6000-W provides measured values such as atmospheric pressure, relative humidity and the ambient temperature of the laboratory environment.
Pressure balance sensor box, model CPU6000-S The CPU6000-S measures the piston temperature and displays the floating position of the masses.
Digital multimeter, model CPU6000-M
The CPU6000-M fulfils the function of a digital multimeter and power supply unit when electronic pressure transmitters must be calibrated.
Typical application
WIKA-Cal PC software - Weight calculator
With the demo version of the WIKA-Cal software and a CPB series pressure balance (dead-weight tester), the masses to be applied and the corresponding reference pressure can be determined. The pressure balance data (dead-weight tester data) can be entered into the database manually or imported automatically via an XML file available online.
All ambient parameters and piston temperature can be entered manually into WIKA-Cal or can be measured automatically with the CPU6000 series, so that the highest accuracy can be achieved. WIKA-Cal demo version can be downloaded free of charge from the WIKA website.
Further specifications on the CPU6000 series can be found in data sheet CT 35.02.
For details of the WIKA-Cal calibration software see data sheet CT 95.10.
CalibratorUnit model CPU6000
Model CPU6000-W, CPU6000-S, CPB5800 and PC with WIKA-Cal software
WIKA-Cal PC software - Weight calculator CPU6000 series
Further pressure balances (dead-weight testers) within our calibration technology programme
Hydraulic pressure balance, model CPB5800 Measuring ranges:
Hydraulic Single-piston measuring ranges:
1 ... 120 to 2 ... 300 bar
[10 ... 1,600 to 30 ... 4,000 lb/in²]
Dual-piston measuring ranges:
1 ... 60 bar / 10 ... 700 bar to 1 ... 60 bar / 20 ... 1,400 bar
[10 ... 800 lb/in²/ 100 ... 10,000 lb/in² to 10 ... 800 lb/in² / 200 ... 20,000 lb/in²]
Accuracy: 0.015 % of reading
up to 0.006 % of reading (optional)
For specifications see data sheet CT 31.11 Hydraulic pressure balance, model CPB5800
Pneumatic pressure balance, model CPB5000 Measuring ranges:
Hydraulic -0.03 ... -1 to +0.4 ... +100 bar [-0.435 … -14 to +5.8 … +1,500 lb/in²]
Accuracy: 0.015 % of reading
0.008 % of reading (optional)
For specifications see data sheet CT 31.01 Pneumatic pressure balance, model CPB5000
Pressure balance for high pressure, model CPB5000HP Measuring ranges:
Hydraulic 25 ... 2,500, 25 ... 4,000 or 40 … 6,000 bar [350 ... 40,000, 350 ... 60,000 or
400 … 90,000 lb/in²]
Accuracy: 0.025 % of reading
0.02 % of reading (optional)
For specifications see data sheet CT 31.51 Pressure balance for high pressure, model CPB5000HP
Pressure balance for differential pressure, model CPB5600DP
Measuring ranges (= static pressure + differential pressure):
Pneumatic 0.03 ... 2 to 0.4 … 100 bar [0.435 ... 30 to 5.8 … 1,500 lb/in²]
Hydraulic 0.2 ... 60 to 25 … 1,600 bar
[2.9 ... 1,000 to 350 … 23,200 lb/in²]
Accuracy: 0.015 % of reading
0.008 % of reading (optional) Pressure balance for differential pressure,
Set of fine increment masses M1 and F1
The masses included in the standard mass set are ideally suited for everyday use. If even smaller intermediate values need to be generated, using one of the class M1 or F1 set of fine increment masses with the following masses is recommended:
1 x 50 g, 2 x 20 g, 1 x 10 g, 1 x 5 g, 2 x 2 g, 1 x 1 g, 1 x 500 mg, 2 x 200 mg, 1 x 100 mg, 1 x 50 mg, 2 x 20 mg, 1 x 10 mg, 1 x 5 mg, 2 x 2 mg, 1 x 1 mg
Test connections
With the existing standard test item connection, test items with radial connection points can be mounted. For units with rear connection points, a 90° angled connection piece is available.
Separators
The separators (with diaphragm) have been specifically designed for measuring instruments, which should not come into contact with the medium of the pressure balance (dead-weight tester) or to protect the pressure balance (dead-weight tester) against contamination from the test items.
Accessories
Set of fine increment masses
Fig. right: 90° angle connector
Fig. left: Separator (with diaphragm) 700 bar [10,000 lb/in²]
Fig. right: Separator (with diaphragm) 1,200 bar [16,000 lb/in²]
Accessories
Special features Order code
CPB-A-BB- Set of fine increment masses
1 mg up to 50 g, class F1 -4-
1 mg up to 50 g, class M1 -5-
Carrying case
for CPB3800 instrument base and piston cylinder system -1-
Set of 2 carrying cases
for bar mass set -D-
Set of 2 carrying cases
for lb/in² mass set -E-
Special features Order code CPB-A-BB- Set of 3 storage cases
for mass set, instrument base and piston-cylinder system -3-
Adapter set
“BSP” for G ½ B male test item connector to G ⅛, G ¼, G ⅜ and G ½ female -B- Adapter set
“NPT” for test item connection G ½ B male on ⅛ NPT, ¼ NPT, ⅜ NPT and ½ NPT female -N- Adapter set
“metric” for test item connection G ½ B male on M12 x 1.5, M16 x 1.5 and M20 x 1.5 female -M- 90° angle connection
for test items with back mounting connection Threaded insert G ½ (½" BSP)
-6-
Test item connection
G ¾ female to G ½ female, rotating -9-
Separator
to separate two liquid media by a diaphragm, max. 700 bar [10,000 lb/in²] -J- Separator
to separate two liquid media by a diaphragm, max. 1,200 bar [16,000 lb/in²] -K-
Sealing set
for CPB3800 instrument base -7-
Operating fluid
for CPB series up to max. 4,000 bar [60,000 lb/in²], 0,5 litre -8-
Electrical piston rotation unit AC 110 V for industrial power plug, 3 pole
only for measuring ranges 700 bar and 1,200 bar [10,000 lb/in² and 16,000 lb/in²]
-I-
Electrical piston rotation unit AC 230 V for industrial power plug, 3 pole
only for measuring ranges 700 bar and 1,200 bar [10,000 lb/in² and 16,000 lb/in²]
-F-
Tool set
consisting of: open-ended spanner, BSP adapter, sealings, pointer remover and pointer punch
-H-
Ordering information for your request
1. Order code: CPB-A-BB
2. Option: ⇓
[ ]
WIKA data sheet CT 31.06 ∙ 08/2020 Page 16 of 16
© 03/2012 WIKA Alexander Wiegand SE & Co. KG, all rights reserved.
The specifications given in this document represent the state of engineering at the time of publishing.
We reserve the right to make modifications to the specifications and materials.
08/2020 EN
WIKA Alexander Wiegand SE & Co. KG Alexander-Wiegand-Straße 30
Ordering information
Instrument base
CPB3800 / Instrument version / Accuracy / Gravity value g / Standard adapter set / Storage case / Calibration for pressure balance / Additional ordering information
Piston-cylinder system
CPS5800 / Accuracy / Gravity value g / Measuring range / Connection of piston-cylinder system / Storage case for piston- cylinder system / Calibration for piston-cylinder system / Additional ordering information
Mass set
CPM5800 / Pressure unit / Gravity value g / Standard mass set / Set of fine increment masses / Calibration for standard mass set / Calibration for set of fine increment masses / Additional ordering information
Scope of delivery
■ Base
■ Dual-area spindle pump for filling, pressure generation and fine pressure adjustment
■ Piston connection with G ¾ B male thread
■ Test connection with G ½ female thread, loose union connection
■ Adapter set for test item connection consisting of:
Adapter set “BSP” with G ½ male on G ⅛, G ¼, G ⅜ and G ½ female
■ Piston-cylinder system
■ Masses manufactured to standard gravity (standard value: 9.80665 m/s²)
■ VG22 mineral oil (0.5 litre)
■ Tool and maintenance set consisting of:
1 hexagon wrench key 3 mm A/F 2 x 30 mm A/F open-ended spanners 1 spirit level
4 level plates 1 set of sealing rings 1 Pointer punch 1 Pointer remover
■ Operating instructions
■ Factory calibration certificate
Options
■ Systems with increased accuracy to 0.006 %
■ Further pressure transmission media
■ Further pressure units
■ Set of fine increment masses (CPS/CPM5800 option only)
■ Masses, manufactured to local gravity
■ UKAS calibration certificate
